The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 2013
Filed:
Nov. 20, 2008
Hiroyuki Yamaguchi, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Hideki Nakai, Fukushima, JP;
Atsumichi Kawashima, Fukushima, JP;
Tadahiko Kubota, Kanagawa, JP;
Hiroyuki Yamaguchi, Fukushima, JP;
Masayuki Ihara, Fukushima, JP;
Hideki Nakai, Fukushima, JP;
Atsumichi Kawashima, Fukushima, JP;
Tadahiko Kubota, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A battery capable of improving the cycle characteristics and the swollenness characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has a coat on an anode active material layer provided on an anode current collector. The coat contains a metal salt. The metal salt has a hydroxyl group and at least one of a sulfonic acid group and a carboxylic acid group. Thereby, lithium ions are easily inserted in the anode and extracted from the anode, and decomposition of the electrolytic solution is prevented.